JP3392633B2 - Combustor - Google Patents
CombustorInfo
- Publication number
- JP3392633B2 JP3392633B2 JP12016596A JP12016596A JP3392633B2 JP 3392633 B2 JP3392633 B2 JP 3392633B2 JP 12016596 A JP12016596 A JP 12016596A JP 12016596 A JP12016596 A JP 12016596A JP 3392633 B2 JP3392633 B2 JP 3392633B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- nozzle
- combustor
- inner cylinder
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spray-Type Burners (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、中心に保炎用パイ
ロットノズルを有し、その周囲に複数個のメインノズル
を配置しなるマルチノズルタイプで、ガスタービン燃焼
器に適用して好適な燃焼器に関する。
【０００２】
【従来の技術】従来の燃焼器の断面図を図４に示す。こ
の燃焼器は、中心部にパイロットノズル３を有し、その
周囲に保炎用のコーン４を配設している。コーン４と内
筒５の間に、メインノズル１を周方向に複数個配置して
いる。
【０００３】メインノズル１は、燃料供給用のシャフト
６とノズルガイド２から構成されている。
【０００４】このメインノズル１付近の拡大図を図５に
示す。図５に見られるように、パイロットノズル３の保
炎用コーン４と内筒５との間において、パイロット火炎
からメイン燃料への火炎伝播領域では、メインノズル１
から噴出される燃料の分布６はシャフト６の後流域１１
で燃料濃度が低くその周囲で燃料濃度の高い領域１２を
もつ不均一な分布となっていた。
【０００５】さらに、保炎用コーン４と内筒５の間のメ
インノズルから噴出される燃料の分布６ａは、図５に示
すように燃料が空気流に対して或る燃料噴出角度１０を
もって噴出される為に、燃料の過濃領域が生じていた。
【０００６】また、図５に示すように、燃料噴出位置か
ら着火位置までの混合・蒸発領域１６の距離が短く液体
燃料と空気との混合が十分に行えない為に、微視的にも
燃料過濃領域が存在していた。
【０００７】更に、ガスタービンの負荷の高い時、燃料
濃度は、図６の（ａ）に示すようにメインノズルシャフ
ト中心７が希薄となり、壁側が高くなる分布となり、負
荷の低い時は図６の（ｂ）に示すようにメインノズルシ
ャフト中心７に近い領域で燃料濃度が高くなる分布とな
っていた。
【０００８】
【発明が解決しようとする課題】前記したように、従来
の燃焼器における燃料ノズルでは、燃料を供給する為の
シャフト（図４のシャフト６）が必要な為に燃料濃度が
高い領域（図５、燃料濃度高い領域１２）が存在する。
【０００９】ガスタービン燃焼器では排ガス中に含まれ
るＮＯx の低減が課題となっており、ＮＯx 発生領域
は、燃料が過濃で局所的に高となる領域である。従来の
燃料ノズルでは燃料分布が不均一な為に、図５に示すよ
うに燃料濃度の高い領域１２が存在し、その為にＮＯx
の発生量が多かった。
【００１０】また、負荷によって燃料分布が異なる為
に、図６の（ａ）に示すように負荷の高い時では、パイ
ロット火炎１９の間近にメイン燃料が分布していて火炎
の伝播１４がスムーズに行われるが、図６の（ｂ）に示
すように、負荷の低い時では、パイロット火炎１９から
離れた領域にメイン燃料があり、パイロット火炎１９か
らメイン燃料への火炎の伝播１８がスムーズに行えず、
この為、未燃分の発生が起っていた。
【００１１】本発明は、中心に保炎用パイロットノズル
を有し、その周囲に複数個のメインノズルを配置しなる
マルチノズルタイプの燃焼器において、燃料流量の変化
に拘らず燃料分布が均一でＮＯx の発生が少いと共に未
燃分の発生が少い燃焼器を提供することを課題としてい
る。
【００１２】
【課題を解決するための手段】本発明では、上記課題を
解決する為に中心部にパイロットノズルを有し、その周
囲に保炎用のコーンを配し、更にその周囲に複数個のメ
インノズルを配置しなるマルチノズルタイプの燃焼器に
おいて、前記メインノズルが外筒と内筒を有し、その内
外筒間の隙間に形成された円環流路から燃料を噴出する
ように構成され、前記円環流路から噴出された燃料をそ
の周囲の空気流により微粒化したのち、混合・蒸発を促
進させるノズルガイドを前記コーンと内筒によって囲ま
れた領域に有する燃焼器を提供する。これにより、燃料
の噴出角度を空気流の流れ方向とほぼ同一とする。
【００１３】以上の構成をもつ本発明の燃焼器において
は、燃料供給を円環流路から行う事で、燃料供給段階に
おいて、周方向の燃料分布の均一化を図る。また、燃料
噴出方向を、空気流とほぼ同一方向とする事で、燃料流
量の変化に伴う分散の変化を少なくすることが可能とな
る。
【００１４】本発明の燃焼器では、メインノズルから噴
出された燃料を空気流で微粒化する為に、燃料粒径を小
さくする事ができ、微粒化後に、燃料の混合・蒸発を促
進させるノズルガイドを前記コーンと内筒によって囲ま
れた領域に設け、混合の促進を行い、また、蒸発を促進
する事で予混合燃焼を可能とできる。
【００１５】なお、本発明による燃焼器においては、燃
料供給用のシャフトを流速の遅い、より上流側へ配置す
るのが好ましい。このように燃料供給の為のシャフトを
空気流速の遅い上流側に設けた構成とすることによって
ノズル出口での空気のよどみ領域をなくし、燃料分布の
均一化を図ることができる。
【００１６】さらに、本発明による燃焼器においては、
燃料と空気との混合・蒸発領域を長くするのが好まし
い。また、本発明による燃焼器では、内筒内に空気スワ
ーラを設け空気と燃料との混合を促進するのが好まし
い。
【００１７】
【発明の実施の形態】以下、本発明による燃焼器につい
て図１〜図３に示した実施の形態に基づいて具体的に説
明する。なお、以下の実施の形態において、図４〜図６
に示した従来の装置と同じ構成の部分には説明を簡単に
するため同じ符号を付してあり、それらについての重複
する説明は省略する。
【００１８】本実施形態による燃焼器では、中心部にパ
イロットノズル３を有し、その周囲に保炎用のコーン４
を配している。そのコーン４と内筒５の間にメインノズ
ル１を周方向に複数個配置している。
【００１９】メインノズル１は、燃料を供給する為のシ
ャフト６と燃料を噴出する燃料円環１４と、燃料と空気
を混合し燃料を蒸発させる領域となるノズルガイド２を
有している。
【００２０】メインノズル１のノズル部の詳細を図２に
示す。メインノズル１の燃料噴出部は、燃料ノズル外筒
１３と燃料ノズル内筒１５の間の隙間によって形成され
る燃料円環１４より燃料を噴出する。燃料噴出角１０
は、水平方向に対しθ傾けてある。燃料ノズル内筒１５
の内側には、空気スワーラ１７を設け空気流に旋回力を
与え空気と燃料の混合を促進する。
【００２１】本ノズルでは図３に示すように、コーン４
と内筒５によって囲れた領域では、燃料と空気との混合
が促進される為に、燃料分布６ａが均一となり燃料の過
濃領域が存在しない。また、空気流と燃料噴出方向とが
ほぼ同一である為、ガスタービンの負荷変動においても
燃料分布が偏る事がない。
【００２２】さらに、燃料を空気流で微粒化する為、燃
料粒径を小さくする事ができ、蒸発を促進できる。これ
に加えて、混合・蒸発領域を長くした事で燃料の蒸発を
さらに促進し、油燃料においても予混合燃焼を可能とし
た。本発明による燃焼器における燃料は液体燃料、気体
燃料、いずれでもよいことはいうまでもない。
【００２３】
【発明の効果】以上説明したように、本発明による燃焼
器では、中心部にパイロットノズルを有し、その周囲に
保炎用のコーンを配し、更にその周囲に複数個のメイン
ノズルを配置しなるマルチノズルタイプの燃焼器におい
て、前記メインノズルが外筒と内筒を有し、その内外筒
間の隙間に形成された円環流路から燃料を噴出するよう
に構成され、前記円環流路から噴出された燃料をその周
囲の空気流により微粒化したのち、混合・蒸発を促進さ
せるノズルガイドを前記コーンと内筒によって囲まれた
領域に有する構成としてあるので、この燃焼器において
は、燃料と空気との混合が良く、その為局所的に高温の
火炎が形成されにくい。したがって、本燃焼器ではＮＯ
x の生成を抑制し、低ＮＯx 燃焼を実現できる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-nozzle type in which a flame-holding pilot nozzle is provided at the center and a plurality of main nozzles are arranged around the pilot nozzle. The present invention relates to a combustor suitable for application to a turbine combustor. FIG. 4 is a sectional view of a conventional combustor. This combustor has a pilot nozzle 3 in the center, and a flame holding cone 4 is arranged around the pilot nozzle 3. A plurality of main nozzles 1 are arranged between the cone 4 and the inner cylinder 5 in the circumferential direction. The main nozzle 1 includes a fuel supply shaft 6 and a nozzle guide 2. FIG. 5 shows an enlarged view of the vicinity of the main nozzle 1. As shown in FIG. As shown in FIG. 5, between the flame holding cone 4 of the pilot nozzle 3 and the inner cylinder 5, in the flame propagation region from the pilot flame to the main fuel, the main nozzle 1
The distribution 6 of fuel ejected from the
In this case, the fuel concentration was low and the area around the fuel concentration was high, resulting in an uneven distribution. Further, as shown in FIG. 5, the distribution 6a of the fuel injected from the main nozzle between the flame holding cone 4 and the inner cylinder 5 indicates that the fuel is injected at a certain fuel injection angle 10 with respect to the air flow. As a result, a fuel rich region was generated. Further, as shown in FIG. 5, since the distance of the mixing / evaporation region 16 from the fuel injection position to the ignition position is short and mixing of the liquid fuel and air cannot be performed sufficiently, the fuel can be microscopically displayed. There was a dense area. Further, when the load on the gas turbine is high, the fuel concentration is distributed such that the center 7 of the main nozzle shaft becomes thinner and the wall side becomes higher as shown in FIG. (B), the fuel concentration was high in the area near the center 7 of the main nozzle shaft. [0008] As described above, the fuel nozzle of the conventional combustor requires a shaft for supplying the fuel (shaft 6 in FIG. 4), so that the region where the fuel concentration is high is required. (FIG. 5, region 12 with high fuel concentration). [0009] has become a challenge to reduce the NO x contained in the exhaust gas in the gas turbine combustor, NO x generation region is a region in which the fuel is locally high in rich. In the conventional fuel nozzle, since the fuel distribution is not uniform, as shown in FIG. 5, there is an area 12 having a high fuel concentration, and as a result, NO x
The amount of occurrence was large. Further, since the fuel distribution varies depending on the load, as shown in FIG. 6A, when the load is high, the main fuel is distributed near the pilot flame 19, and the propagation 14 of the flame is smooth. However, as shown in FIG. 6B, when the load is low, the main fuel is located in a region away from the pilot flame 19, and the flame propagation 18 from the pilot flame 19 to the main fuel can be smoothly performed. Without
For this reason, the generation of unburned components occurred. According to the present invention, in a multi-nozzle type combustor having a flame holding pilot nozzle at the center and a plurality of main nozzles arranged around the pilot nozzle, the fuel distribution is uniform regardless of a change in fuel flow rate. It has a problem that the generation of unburnt the occurrence of the NO x is small to provide a small combustor. According to the present invention, in order to solve the above-mentioned problems , a pilot nozzle is provided at a central portion, and a pilot nozzle is provided around the pilot nozzle.
A flame-holding cone is placed around the enclosure, and a plurality of
Multi-nozzle type combustor with in-nozzle
Oite, the main nozzle has an outer cylinder and inner cylinder, for injecting fuel from the annular flow path formed in the gap between the inner and outer tubes
The fuel jetted from the annular flow path is atomized by the surrounding air flow, and then the mixing and evaporation are promoted.
The nozzle guide to be advanced is surrounded by the cone and inner cylinder
The invention provides a combustor having an enclosed area . Thereby, the ejection angle of the fuel is made substantially the same as the flow direction of the air flow. In the combustor of the present invention having the above-described structure, the fuel is supplied from the annular flow path, so that the fuel distribution in the circumferential direction is made uniform in the fuel supply stage. Further, by setting the fuel ejection direction to be substantially the same as the air flow, it is possible to reduce a change in dispersion due to a change in fuel flow rate. In the combustor of the present invention, the fuel jetted from the main nozzle is atomized by the air flow, so that the fuel particle size can be reduced. After the atomization, the fuel is mixed and evaporated .
The nozzle guide to be advanced is surrounded by the cone and inner cylinder
Premixed combustion can be made possible by providing it in a closed area to promote mixing and promote evaporation. [0015] In the combustor according to the present invention, it is preferable that the fuel supply shaft be arranged at a lower flow velocity and more upstream. By providing the shaft for supplying fuel on the upstream side where the air flow rate is slow, a region where air stagnates at the nozzle outlet can be eliminated, and the fuel distribution can be made uniform. Further, in the combustor according to the present invention,
It is preferable to lengthen the mixing / evaporation region of fuel and air. Further, in the combustor according to the present invention, it is preferable to provide an air swirler in the inner cylinder to promote mixing of air and fuel. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a combustor according to the present invention will be described in detail with reference to the embodiments shown in FIGS. In the following embodiment, FIGS.
Are denoted by the same reference numerals for the sake of simplicity of description, and duplicate description of those will be omitted. The combustor according to the present embodiment has a pilot nozzle 3 at the center and a flame holding cone 4 around the pilot nozzle 3.
Is arranged. A plurality of main nozzles 1 are arranged between the cone 4 and the inner cylinder 5 in the circumferential direction. The main nozzle 1 has a shaft 6 for supplying fuel, a fuel ring 14 for ejecting fuel, and a nozzle guide 2 serving as an area for mixing fuel and air and evaporating the fuel. FIG. 2 shows the details of the nozzle portion of the main nozzle 1. The fuel ejection portion of the main nozzle 1 ejects fuel from a fuel ring 14 formed by a gap between the fuel nozzle outer cylinder 13 and the fuel nozzle inner cylinder 15. Fuel ejection angle 10
Are inclined by θ with respect to the horizontal direction. Fuel nozzle inner cylinder 15
An air swirler 17 is provided on the inside to impart a swirling force to the air flow to promote mixing of air and fuel. In this nozzle, as shown in FIG.
In the region enclosed by the inner cylinder 5 and the inner cylinder 5, since the mixing of fuel and air is promoted, the fuel distribution 6a becomes uniform, and there is no fuel-rich region. Further, since the air flow and the fuel ejection direction are substantially the same, the fuel distribution does not become uneven even when the load of the gas turbine changes. Furthermore, since the fuel is atomized by the air flow, the particle diameter of the fuel can be reduced, and the evaporation can be promoted. In addition, the elongation of the mixing / evaporation area further promotes the evaporation of fuel, and enables premixed combustion of oil fuel. It goes without saying that the fuel in the combustor according to the present invention may be a liquid fuel or a gaseous fuel. As described above, in the combustor according to the present invention , the pilot nozzle is provided at the center, and the pilot nozzle is provided around the pilot nozzle.
Arrange a flame-holding cone and surround it with multiple main
Multi-nozzle type combustor with nozzles
Te, so that the main nozzle has an outer cylinder and inner cylinder, for injecting fuel from the annular flow path formed in the gap between the inner and outer tubes
Configured to, after the atomization by the air flow around the jet fuel from the annular channel, it is promoting the mixing and vaporization
Let the nozzle guide be surrounded by the cone and inner cylinder
Because are a structure having a region in the combustor, good mixing of fuel and air, Therefore locally difficult hot flame is formed. Therefore, in this combustor, NO
x generation can be suppressed and low NO x combustion can be realized.
【図面の簡単な説明】
【図１】本発明の実施の一形態に係る燃焼器の断面図。
【図２】図１に示した燃焼器における燃料ノズルの拡大
詳細断面図で、（ａ）は縦断面図、（ｂ）は（ａ）図の
Ａ−Ａ線に沿う横断面図。
【図３】図１に示した燃焼器の燃料ノズルにおける燃料
分布の説明図。
【図４】従来の燃焼器を示す断面図。
【図５】従来の燃料ノズルにおける燃料分布の説明図。
【図６】従来の燃料ノズルの負荷の違いによる燃料分布
の説明図で、（ａ）は負荷の高いとき、（ｂ）は負荷の
低いときを示している。
【符号の説明】
１ メインノズル
２ ノズルガイド
３ パイロットノズル
４ コーン
５ 内筒
６ シャフト
６ａ 燃料分布
８ 燃料
９ 空気
１０ 燃料噴出角
１２ ノズルガイド
１３ 燃料ノズル外筒
１４ 燃料円環
１５ 燃料ノズル内筒
１６ 混合・蒸発領域
１７ 空気スワーラBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a combustor according to one embodiment of the present invention. FIG. 2 is an enlarged detailed sectional view of a fuel nozzle in the combustor shown in FIG. 1, wherein (a) is a longitudinal sectional view, and (b) is a transverse sectional view taken along line AA of (a). FIG. 3 is an explanatory diagram of a fuel distribution in a fuel nozzle of the combustor shown in FIG. 1; FIG. 4 is a sectional view showing a conventional combustor. FIG. 5 is an explanatory diagram of a fuel distribution in a conventional fuel nozzle. 6A and 6B are explanatory diagrams of fuel distribution depending on a difference in load of a conventional fuel nozzle. FIG. 6A shows a case where the load is high, and FIG. 6B shows a case where the load is low. [Description of Signs] 1 Main nozzle 2 Nozzle guide 3 Pilot nozzle 4 Cone 5 Inner cylinder 6 Shaft 6a Fuel distribution 8 Fuel 9 Air 10 Fuel ejection angle 12 Nozzle guide 13 Fuel nozzle outer cylinder 14 Fuel ring 15 Fuel nozzle inner cylinder 16 Mixing / evaporation area 17 Air swirler
───────────────────────────────────────────────────── フロントページの続き (72)発明者 谷村 聡 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社高砂製作所内 (72)発明者 西田 幸一 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社高砂製作所内 (56)参考文献 特開 昭51−64116（ＪＰ，Ａ) 特開 昭53−126526（ＪＰ，Ａ) 特開 平５−106806（ＪＰ，Ａ) 実開 昭61−39269（ＪＰ，Ｕ) 実開 昭63−97019（ＪＰ，Ｕ) 実開 平５−17355（ＪＰ，Ｕ) 特公 昭47−39849（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) F23R 3/28 F23R 3/20 F23R 3/34 F23D 11/10 - 11/12 F23C 11/00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Tanimura 2-1-1 Shinama, Arai-machi, Takasago City, Hyogo Prefecture Inside the Takasago Works, Mitsubishi Heavy Industries, Ltd. (72) Koichi Nishida 2-1-1 Shinama, Arai-machi, Takasago City, Hyogo Prefecture No. 1 Inside Takasago Works, Mitsubishi Heavy Industries, Ltd. (56) References JP-A-51-64116 (JP, A) JP-A-53-126526 (JP, A) JP-A-5-106806 (JP, A) 61-39269 (JP, U) JP-A 63-97019 (JP, U) JP-A 5-17355 (JP, U) JP-B 47-39849 (JP, B2) (58) Fields surveyed (Int. Cl. 7 , DB name) F23R 3/28 F23R 3/20 F23R 3/34 F23D 11/10-11/12 F23C 11/00
Claims (1)
周囲に保炎用のコーンを配し、更にその周囲に複数個の
メインノズルを配置しなるマルチノズルタイプの燃焼器
において、前記メインノズルが外筒と内筒を有し、同内
外筒間の隙間に形成された円環流路から燃料を噴出する
ように構成され、前記円環流路から噴出された燃料をそ
の周囲の空気流により微粒化したのち、混合・蒸発を促
進させるノズルガイドを前記コーンと内筒によって囲ま
れた領域に有することを特徴とする燃焼器。(57) has a Claims 1. A path in the center Irottonozuru, arranged cone for flame stabilization on its periphery, Naru further arranged a plurality of main nozzles around multi in the nozzle type combustor, the main nozzle has an outer cylinder and inner cylinder, for injecting fuel from the annular flow path formed in the gap between the inner and outer tubes
Is configured to, after the atomized by its <br/> ambient air flow of the ejected fuel from said annular passage, prompting the mixture and evaporation
The nozzle guide to be advanced is surrounded by the cone and inner cylinder
A combustor characterized by having the combustor in a restricted area.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12016596A JP3392633B2 (en) | 1996-05-15 | 1996-05-15 | Combustor |
| US09/035,504 US6047551A (en) | 1996-05-15 | 1998-03-05 | Multi-nozzle combustor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12016596A JP3392633B2 (en) | 1996-05-15 | 1996-05-15 | Combustor |
| US09/035,504 US6047551A (en) | 1996-05-15 | 1998-03-05 | Multi-nozzle combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09303716A JPH09303716A (en) | 1997-11-28 |
| JP3392633B2 true JP3392633B2 (en) | 2003-03-31 |
Family
ID=26457787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12016596A Expired - Lifetime JP3392633B2 (en) | 1996-05-15 | 1996-05-15 | Combustor |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6047551A (en) |
| JP (1) | JP3392633B2 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69930455T2 (en) * | 1998-11-12 | 2006-11-23 | Mitsubishi Heavy Industries, Ltd. | Gas turbine combustor |
| US6363726B1 (en) * | 2000-09-29 | 2002-04-02 | General Electric Company | Mixer having multiple swirlers |
| JP3986348B2 (en) * | 2001-06-29 | 2007-10-03 | 三菱重工業株式会社 | Fuel supply nozzle of gas turbine combustor, gas turbine combustor, and gas turbine |
| US6530222B2 (en) | 2001-07-13 | 2003-03-11 | Pratt & Whitney Canada Corp. | Swirled diffusion dump combustor |
| US6928823B2 (en) * | 2001-08-29 | 2005-08-16 | Hitachi, Ltd. | Gas turbine combustor and operating method thereof |
| US6813889B2 (en) * | 2001-08-29 | 2004-11-09 | Hitachi, Ltd. | Gas turbine combustor and operating method thereof |
| US6832481B2 (en) * | 2002-09-26 | 2004-12-21 | Siemens Westinghouse Power Corporation | Turbine engine fuel nozzle |
| US7185494B2 (en) * | 2004-04-12 | 2007-03-06 | General Electric Company | Reduced center burner in multi-burner combustor and method for operating the combustor |
| US20090223227A1 (en) * | 2008-03-05 | 2009-09-10 | General Electric Company | Combustion cap with crown mixing holes |
| US8402763B2 (en) * | 2009-10-26 | 2013-03-26 | General Electric Company | Combustor headend guide vanes to reduce flow maldistribution into multi-nozzle arrangement |
| EP2402652A1 (en) * | 2010-07-01 | 2012-01-04 | Siemens Aktiengesellschaft | Burner |
| US20120144832A1 (en) * | 2010-12-10 | 2012-06-14 | General Electric Company | Passive air-fuel mixing prechamber |
| US9021675B2 (en) | 2011-08-15 | 2015-05-05 | United Technologies Corporation | Method for repairing fuel nozzle guides for gas turbine engine combustors using cold metal transfer weld technology |
| JP6004976B2 (en) * | 2013-03-21 | 2016-10-12 | 三菱重工業株式会社 | Combustor and gas turbine |
| JP7254540B2 (en) * | 2019-01-31 | 2023-04-10 | 三菱重工業株式会社 | Burner, combustor and gas turbine equipped with the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5328355A (en) * | 1991-09-26 | 1994-07-12 | Hitachi, Ltd. | Combustor and combustion apparatus |
| US5415000A (en) * | 1994-06-13 | 1995-05-16 | Westinghouse Electric Corporation | Low NOx combustor retro-fit system for gas turbines |
| JP3183053B2 (en) * | 1994-07-20 | 2001-07-03 | 株式会社日立製作所 | Gas turbine combustor and gas turbine |
-
1996
- 1996-05-15 JP JP12016596A patent/JP3392633B2/en not_active Expired - Lifetime
-
1998
- 1998-03-05 US US09/035,504 patent/US6047551A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09303716A (en) | 1997-11-28 |
| US6047551A (en) | 2000-04-11 |
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